NCA: Climate Change Impacts in the United States

by

U.S. Global Change Research Program

,

Third National Climate Assessment

Summarizes the impacts of climate change on the United States, now and in the future, as determined by a team of more than 300 experts guided by a 60-member Federal Advisory Committee, and reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences

Finds that the world is warming and that human activity is the primary cause

Finds that other changes flow from this warming, including melting of snow and ice, rising sea level, and increases in some types of extreme weather, such as extreme heat and heavy downpours